WS Audiology (formerly Sivantos Group and Widex) is a privately-owned manufacturer of hearing aids with headquarters in Denmark and Singapore with roots going back to 1878 and Siemens AG.

[9] In 1959 Siemens developed the Auriculette, a behind-the-ear (BTE) device with small lightweight components that fit together in a single unit.

[7] In 2015, Swedish private equity firm EQT bought Siemens Audiology Solutions for more than 2 billion euros and renamed the company Sivantos.

[11] Sivantos Group joined the UN Global Compact Initiative in 2017 and began to streamline its social activities and CSR policy.

The agreement defined that Dr. Marco Vietor and Paul Crusius will become part of the Sivantos management and continue to lead to hear.com (in Europe audibene) business, as well as support the company in its further international expansion efforts.